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Digital Photography noise is a common occurrence in photography when the setting of the ISO is too high or if you are using a cheap digital camera.

When you press the shutter on your camera, light hits the sensor, and an analog signal is produced, which is converted to a digital image. If, during this time, something messes up the particles creating the analog signal, then noise is produced.

Noise can be reduced in Photoshop

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Q: What is noise in digital photography?
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